xc/programs/Xserver/hw/xfree86/doc/sgml/NVIDIA.sgml


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<!DOCTYPE linuxdoc PUBLIC "-//XFree86//DTD linuxdoc//EN">

<article>

<!-- Title information -->
<title>Information for NVidia NV1 / SGS-Thomson STG2000, Riva 128 and Riva TNT and TNT2 Users
<author>David McKay, Dirk Hohndel
<date>June 25 1999

<!-- Table of contents -->
<toc>

<sect>Supported hardware
<p>
This driver supports good acceleration for the NV1/STG2000 as well as
the Riva128, Riva TNT and Riva TNT2.

<sect>Notes
<p>
<itemize>
  <item>On the NV1/STG2000, the driver does not support the virtual desktop 
        features of xfree86.
	This is because the NV1 does not have the necessary hardware to
	support this
	feature. If you want to change resolutions, you will have
	to modify your config file. Comment out all but the mode you wish
	to use.
  <item>The generic VGA16 server will not work with the NV1.  For this reason
	<tt>XF86Setup</tt> cannot be used to configure the server for NV1
	based cards.  Use
	<tt>xf86config</tt> instead.  Select `Diamond Edge 3D' as your board,
	and select only <bf>ONE</bf> mode for each of 8bpp and 16bpp.  Do
	not select a virtual desktop.  Also, make sure you don't select
	a RAMDAC or clock chip. This does not apply if you own a Riva128
	or RIVA TNT card, as the VGA16 server works just fine on that.
  <item>Both the NV1 and the Riva128 only support a 555 RGB Weight in 16 bpp, 
        the hardware does
	not do 565. If you run into problems with some window managers in
	16bpp, try putting a Weight 555 in the Display section.
  <item>24 bpp is not supported.
  <item>In some modes the hardware cursor gets out of sync with the display.
        Use Option "sw_cursor" to work around this problem.
  <item>There are modelines that confuse the Riva128 chip. This results in
        a greenish display. Slightly modifying the modeline usually fixes 
	the problem. In most cases all that is needed is to reduce the
	HTotal. You can use xvidtune to do that.
  <item>The low maximum dot clocks for the Riva 128 have been fixed. The
        driver should now utilize the Riva 128 to its full capabilities.
</itemize>

<sect>Authors
<p>
<itemize>
<item>David McKay
<item>David Schmenk <it>&lt;dschmenk@nvidia.com&gt;</it>
<item>Dirk Hohndel <it>&lt;hohndel@XFree86.org&gt;</it>
</itemize>

<verb>
$XFree86: xc/programs/Xserver/hw/xfree86/doc/sgml/NVIDIA.sgml,v 1.2 1999/08/23 06:18:33 dawes Exp $
</verb>

</article>